The process of digitalization of the Russian economy as the basis for the transition to the digitaleconomy is conditioned by the requirements of objective reality and is based, first of all, on theintroduction of digital technologies into the activities of its actors. The most promising is theBlockchain technology, which has the capabilities of the most effective coordination of the economicinterests of the actors of the digital economy and is applicable in various spheres of economic

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... he article discusses the basics of cryptocurrencies and blockchain operation, as well as thetechnologies in which this "Tasks of Byzantine generals" (decision-making tasks) occurs. Acomparison is made for solution of the problem with different blockchain technologies with severalplatforms that prevent behavior dangerous for transactions network and thereby increasing thecompetitiveness of the cryptocurrency.